Dual Gold/Silver Catalysis Involving Alkynylgold(III) Intermediates Formed by Oxidative Addition and Silver-Catalyzed C-H Activation for the Direct Alkynylation of Cyclopropenes.
Angew Chem Int Ed Engl
; 58(15): 5129-5133, 2019 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-30680917
ABSTRACT
While gold-mediated synergistic catalytic processes involving transmetalations with other metals are well understood, AuI /AuIII cycles in these reactions are rarely reported. Herein a gold-catalyzed direct alkynylation of cyclopropenes is enabled by two operating catalytic cycles, an oxidative catalytic cycle involving an alkynyl AuIII complex formed by oxidative addition and one involving a silver-mediated C-H activation.
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MEDLINE
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En
Ano de publicação:
2019
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Article